| 摘要 |
The invention relates to liquid crystal compounds of formula (I), where X<SUP>1</SUP>, X<SUP>2</SUP>, X<SUP>3</SUP>, Z<SUP>1</SUP>, Z<SUP>2</SUP>, L<SUP>1</SUP>, L<SUP>2</SUP>, L<SUP>3</SUP>, L<SUP>4</SUP>, L<SUP>5</SUP>, L<SUP>6</SUP>, L<SUP>7</SUP>, L<SUP>8</SUP>, L<SUP>9</SUP>, L<SUP>10</SUP>, L<SUP>11 </SUP>and a have the meanings given in claim 1 , and liquid crystal media containing at least one compound of formula (I) and electro-optical displays comprising such a liquid crystal medium |
